Decision speed
Indoor compressor total speed value
Model
A
B
SCM40ZS-S
SCM45ZS-S
SCM50ZS-S
Functional
components
Operation
Compressor speed
Indoor
fan
Compressor
Outdoor fan
Electronic
expansion valve
Cooling
Thermostat OFF
(All indoor units)
Thermostat OFF
(Some of indoor units)
Fan, stop, abnormal stop
(Some of indoor units)
Failure
(Outdoor unit)
Fixed
Automatic
(2) Operation of major functional components in cooling mode
(b) Outdoor compressor speed control
7.5.3
ࠉ
Protective control function
(1) Cooling overload protective control
(a) Operating conditions
Item
SCM40, 45, 50ZS-S
Outdoor air temperature
Lower limit speed
Model
Outdoor air temperature ( )
C
º
Tho-A
(b) Detail of operation
(c) Reset conditions
(2) Cooling high pressure control
(a) Purpose
(b) Detector
(c) Detail of operation
53
58
60
Outdoor heat exchanger temperature (°C)
8rps
(1)
8rps
(1)
0rps
After lapse of 30 sec. or over
(3)
After lapse of 30 sec. or over
(3)
After lapse of 30 sec. or over
(3)
Lower limit
speed 30 rps
(Example) Fuzzy
Tho-R
60
8
20
60
30 40
30 40
thermostat OFF, the speed is reduced to 0 rps.
(i)
(ii)
-
191
-
'16 • SCM-T-199
